Have a look at some real jobs and see what they're asking for. I just picked this page at random from Google: http://www.indeed.com/q-Datacenter-Linux-Administrator-jobs.html
Probably the number of people who want to pay with BTC is too small to make it worth their while adding the process to accept and account for these payments.
It's the Greenland Connect that fascinates me. What an amazing endeavor, connecting that icy part of the world. But apparently it doesn't get much use due to high usage charges.